Answer:
See Explanation Below
Step-by-step explanation:
Given

Required
Prove
To start with; we open the bracket on the left hand side




Reorder

From trigonometry;

So;

becomes

Also from trigonometry;

So,  

becomes

Proved
 
        
             
        
        
        
Step-by-step explanation:
1) x+6 =4
 x. =4-6
 x. =-2
2) x-(-4) =-6
 x+ 4. =-6
 x. =-6-4
 x. =-10
3)2(x-1)=-200
 2x-2 =-200
 2x. = -200+2
 2x. = -198
 x. = -198/2
 x. = -99
4)2x+(-3) =-23
 2x-3. =-23
 2x. =-23+3
 2x. =-20
 x. =-20/2
 x. = -10
 
        
             
        
        
        
The common denominator is already there 12 is the common denominator!! :)
        
                    
             
        
        
        
Answer:
5 lines we can draw using 2 points
 
        
             
        
        
        
Answer: No
Step-by-step explanation: Because.